Tabulating machine



Nov. 9, 1937J L c. REYNOLDS TABULATING MACHINE Filed Dec. 5, 1930 5Sheets-Sheet 1y mnwww O| 0000 Nov. 9, 1937. L.. c. REYNOLDS TABULAT INGMACHINE v 5 sheets-sheet 2 lNvEN OR BY ATTORNEY Filed Dec. 5. 1930 Nov.9, 1937. L C, REYNOLDS 2,098,359

TABULAT ING MACHINE Filed Deo. 5, 1930 5 Sheets-Sheet 3 /Cq 695 65 59 H67 FIG 5 i 7 62 59 66 9s -51 556 59 660 ,l 6 es 6 5s 38 as 52 72 z5 72 Ai #52 73 75 i A 76 E 'til -f L 74 56 l 7i I lNvEIN 0R BY ATTORNEY FiledDec. 5 1930 5 Sheets-Sheetl 4 l I l .Il o o o o o o o o o o o o o o o oo I I o o r L L Inl Il. :Il /IIII-I.. o onoooonvno D000oooouon'unuuqouuooonnonnunnn NOE BY `ATTORNEY Nov. 9, 1937. L, c.REYNOLDS 2,098,359

TABULATING MACHINE Filed Dec. 5. 1930 5 Sheets-Sheet 5 Plas. g

BY ATTORNEY INVENToR Patented Nov. 9, 1937 UNITED STATES PATENT OFFICETABULATIG MACHINE Application December 5, 1930, Serial No. 500,234

10 Claims. (Cl. 23S-81.7)

The present invention relates generally to record controlled accountingand statistical machines and is directed largely toward improvements inthe control mechanisms for such ma- 5 chines which heretofore have beencontrolled in most instances by perforated record cards.

'Ihe main object of this invention is to provide novel and improvedmechanisms for controlling any well-known card controlled accounting andl statistical machine by means of a perforated record strip, the saidrecord strip controlled mechanisms being designed to be attached to suchmachines without requiring extensive alterations in the structure of themachine as a whole.

l Another object is to provide mechanism controlled by data designationson the record strip to determine whether or not items corresponding to aparticular data designation or group identifying number are to betabulated.

20 Various other objects, advantages, or features of this invention willbe pointed out in the following specification and claims or will beapparent from a study thereof and of the accompanying drawings.

25 The drawings illustrate two ways in which the objects stated abovemay be attained, however, it is to be understood that it may be embodiedin accounting and tabulating machines of other types than the onesillustrated and in 30 various ways without going beyond the bounds ofthe claims set forth hereinafter.

In said drawings:

Fig. l is a vertical elevation partly in section illustratingdiagrammatically the construction 35 and arrangement of the presentinvention as applied to a tabulating machine of the type described inLetters Patent No. 1,245,502.

Fig. 2 is a specimen of the .record tape used to control the operationof the machine.

40 Fig. 3 is a vertical side elevation partly in section of the machineshown diagrammatically in Fig. l, the section being taken on the line3-3 of Fig. 1.

Fig. 4 is a perspective view of the mechanism 45 for preventingoperation of the tabulating mechanism.

Fig. 5 is a vertical section through the analyzer taken substantially onthe line 5 5 of Fig. 1.

Fig. 5a is an enlarged view showing in vertical 50 section and inoperated position certain parts above the tape in Fig. l.

Fig. 6 is a vertical section of a modification illustrating how theinvention may be applied to the well-known Hollerith electric tabulating55 machine.

Fig. 7 is a view of a pori-tion of the perforated tape used to control aHollerith electric tabulating machine in accordance with the presentinvention.

Fig. 8 is a diagram of the connections of a Hollerith electrictabulating machine in which the present invention has been embodied.

Fig. 9 is a detail view oi' the mechanism for disabling theaccumulatingand printing mechanism of a Hollerith electric tabulatingmachine when it is not desired to tabulate the information in a givensection of the perforated tape.

The present invention has been shown as embodied ina well-known type oftabulating machine such as is described in Letters Patent No.

' 1,236,481 and No. 1,245,502, however, as will be shown hereinafter, itis capable of adaptation to other types of tabulating machines, forexample, a machine similar to the one described in Letters Patent No.1,379,268 and No. 1,307,740 granted to Clair D. Lake. Since both of themachines described in the cited patents are now wellknown in the art, itwill be unnecessary to go into a lengthy description of theirconstruction and operation, only such parts being described as may benecessary for an understanding of the invention.

The rst live figures of the drawings illustrate one form which theinvention may take and the construction shown therein will now bedescribed in detail. The numeral II refers generally to a tabulatingmachine such as the one described in Letters Patent No. 1,245,502 or1,236,481. Each of the actuators I2 is controlled by means of a group often pins I3 normally out of the path of a lug Il formed in the actuatorI2 and is normally held in the position shown in Fig. 3 by a zero stopI5 formed in a plate I6 both ends of which are pivoted to the frame-workas at Ilia. 'I'here are as many rows of pins I3 as there are columns ina standard record card, the most common standard card having forty-fivecolumns, and each pin is mounted to slide vertically in perforated guideplates I1.

The manner in which the pins I3 operate the plate I8 is fully describedin detail in Patent No. 1,236,481 to which reference may be had for amore detailed description.

Each actuator I2 is adapted to drive an associated accumulator wheel I2aof accumulating mechanism fully described in detail in Patent No.1,245,502 through the medium of gear teeth formed in said actuator whichmesh at the proper times with similar teeth in the accumulator wheelI2a. Each sector I2 also controls a conventional type bar designated I2bin Fig. 3 in the manner described in Patent No. 1,245,502.

The guide plates I1 are supported by a frame l5 mounted upon the mainframe of the machine over a box-like structure carrying freely slidablerods 25. each of which underlies a pin I2. The'rods 25 are guided byparallel plates 2l and the upper and lower ends of each is somewhatenlarged as at 22, the lower enlarged ends being guided by a perforatedplate 25 overlying a second similarly perforated plate 24. The twoplates 22, 24 are spaced apart a sufficient distance to permit therecord tape 25 to pass between them and the holes in the lower plate 24act as guides for spring pressed pins 25 mounted to slide vertically intwo guide plates 21 carried by the vertically reciprocable frame 22, thelatter being slidably mounted in vertical guides not shown.

The frame 22 is operated by means of two cams 29 mounted upon the mainshaft 25 which have cam grooves 2| cooperating with cam rollers 22carried by lugs 22 formed in -the frame 25. The shaft 25 revolvescontinuously, therefore, it will be clear that the frame 25, hereinafterto be termed the pin box, will be moved up and down once each revolutionwith the consequence that any of the pins 25 which pass throughperforations in the tape 25 will lift corresponding rods 22 and pins I2.

There is a pivoted plate I5 for each row of pins I2 or as many plates asthere are columns in the standard record card, consequently there willbe as many actuators I2 as there are columns in the standard recordcard. It will be noted from an inspection of Fig. 2 that the tape 25 isarbitrarily divided into sections or record fields each of which is thefull equivalent of a standard record card, the equivalent record cardbeing shown in broken lines in said figure. The length of the plates 22,24 is about the same as the length of a standard card therefore it willbe clear that the pins 25 will operate over substantially the entirearea of the record field as represented by broken lines in Fig. 2.

Each of the pins I2 has a. stop portion 24 at its upper end and a bentportion 25 adapted to cooperate with a curved cam surface 25 formed inthe pivoted plate I6. Whenever a pin I2 is raised owing to a pin 2Gpassing through a perforation in the record tape 25, the bent portion 25will cooperate with the cam surface 25 and rock the pivoted plates I6 tothe left (Fig. 4) thereby removing the zero stop I5 which is formed inplate I6 from the path of the lug I4 on the actuator I2 so as to permitthe actuator to move to the right and control the printing of the digitrepresented by the perforation in the tape 25. 'I'he foregoing mechanismis fully described in Patent No. 1,236,481 already mentioned, thereforeit will be unnecessary to go into further detail as to the functions ofthe various parts.

The mechanism so far described is now wellknown in the art and is thetypical construction of the Powers accounting machine. It will beunderstood that the machine as a whole has been changed only to theextent of modifying the feeding mechanism for the perforated record usedto control the machine in order to provide for control by a perforatedtape instead of by individual perforated cards.

'I'he record tape 25 is passed between suitable guide rollers 21 andthence between two plates 25,.

sprocket holes 42 inthe tape 25 cooperating with sprocket teeth 42 inthe roller 4I. Adjacent the feeding roller 4I the tape passes betweentwo plates 44 having 4openings therein to accommodate the said roller,the function of the plates 44 being to hold the tape 25 in place andprevent accidental displacement of the tape relative to the feedingroller. Preferably the upper plate will be hinged and held in place by alatch in order to permit ease of insertion of the tape. The feedingroller 4I is mounted upon a shaft 45 with which is rigid a gear 45capable of meshing at the desired time with the teeth of a mutilatedgear 41 rigidly mounted upon a cross shaft 42 parallel with the shaft45. A bevel gear 45 fixed to the shaft 42 meshes with a similar gear 55fixed to the shaft 25. The bevel gears 45. 55 both have the same numberof teeth while the gear 45 and the teeth in gear 41 are so proportionedthat the shaft `45 will make 'one revolution in approximatelyone-sixthof a revolution of the shaft 25. The feeding roller 4I isproportioned to feed the record tape 25 a distance suiiicient to bring anew portion of the tape equivalent to a standard perforated record cardinto operative relation with the pin box 22 each time the roller makesone revolution, the vfeeding operation taking place during the time thecam rollers 22 are traveling in the dwells in the cams 25.

In order to satisfactorily use a perforated tape to control a machine ofthe type just described so as to secure greater fiexibility ofoperation, it is necessary to provide mechanism for disabling theprinting and tabulating functions of the machine when certain recordsoccur which it is not desired to tabulate. When record cards are usedthey may be sorted to eliminate undesired cards, however, this cannot beaccomplished when a record tape is used since the record sections arepermanently fastened together.

The present invention provides for the skip ping of certain recordsafter 'an analyzing device operatively connected to the tabulatingmachine reads the perforations representing a specific class or groupnumber and determines that the data corresponding to the particulargroup involved is not to be tabulated.

The analyzer is carried by a frame 5I which may be reciprocatedvertically by means of two eccentric rods 52 having eccentric straps 52driven by eccentrics 54 carried by shaft 55. A gear 55 mounted uponshaft 55 is driven by a similar gear 51 mounted upon shaft 25,consequently the frame 5I will be drawn downwardly once during eachrevolution of shaft 20 or once each tabulating cycle. The frame 5Icarries two fixed and parallel rods 55 upon which is slidably mountedthe analyzer unit 55 for movement in a direction parallel with thedirection of motion of the tape 25, the frame of the analyzer unit 55being carried by ears 55 attached thereto, the shafts 52 passing throughholes in said ears. The left hand shaft 52 (Fig. 5) or the rear one(Fig. l) is provided with notches 5I, any one of which notches maycooperate with a lug 52 carried by a slidable plate 52 mounted on theleft side plate (Fig. 5) of the analyzer frame. The plate 52 is normallyheld in the'position shown in Fig. 5 by means of a spring 54 and has afinger piece 55. When the finger piece 55 is depressed the lug 52 iswithdrawn from the notch 5I with which it may happen to be in engagementand permits shifting the analyzer pins 55 into register with any one ofnve rows of holes in the plates 25, 22, the holes being disposedcrosswise of the plates 25, 55. 'I'he five rows oi' holes Just mentionedregister with the first five columns of index points of each recordsection or iield analyzed counting from the left (Figs. i and 2).

Ihe analyzer unit 66 is substantially like the analyzer illustrated anddescribed in Patent No. 1,476,161 granted December 4, 1923 to W. W.Lasker. consequently only a brief detailed description of itsconstruction andoperation will be given herein.

'I'he frame of the analyzer unit 69 is preferably in the form of a box,and contains the analyzer or detector elements 66 which, as stated. areadapted to cooperate with the perforations in the plates 66, 69 in orderto feel or detect any perforation which may be ln register with anyupper and lower alining perforations in said plates. In the presentembodiment, the detector elements or pins 66 are arranged in alinementin a row extending transversely from front to rear of the frame 69lengthwise of the machine and are slidably mounted in openings in aguide bar 69a the ends of which bar are rigidly secured to the platesforming the frame 69.

Ihe upper ends of these pins 66 are formed as vertical connector bars66a, the upper end of each of which is pivoted, as at 66h, to anintermediate point on a lever 66e, one end of which lever is mounted torock on a horizontal shaft 66d carried by the frame 69. Each lever 66eis provided at its free end with a latch recess 66e adapted to takeposition under a transverse latch bar 16 loosely mounted on a pivot bar10a supported in the frame 69 and to which bar are y rigidly connectedarms 16h the free ends of which are connected by a bar 69 thearrangement being such as to provide a bell-crank motion on the bar 16aas a fulcrum.

The levers 66c are arranged to rock in the spaces between the teeth orlingers 69a of a guide comb 69h rigidly supported at its ends in anysuitable mannervby the fra-me 59. The barA 10a is normally urged towardthe ends of the levers by means of a torsion spring 16e surrounding andhaving one end suitably secured to said bar 16a, and its other endanchored, in any suitable manner, to a collar 10d secured to the bar bya set screw 19e.

- Beneath the'levers 66cis a-transversely extending stop bar 69h mountedrigidly in frame .'9 and with which is adapted to cooperate stop arms69o on the lower sides of the levers 66C, whereby the projectingmovement of the pins 66 relative to the carrier or pinbox is limited.Connected to the bar 59h is one end of a spring 66], the other end ofwhich is connectedv to one arm of a bellcrank lever 66g, which isfulcrumed at its angie on the pivot 66h heretofore described. The otherarm 61 of the bell-crank lever 66g, extends upwardly and is provided onthe side toward the bar 66 with an arm 66a having at its end a lockingrecess 68. The arrangement'issuch that when the frame 59 is moved towardthe plates 66, 66 by the means described, certain of the pins 66 maypass through perforations in the plates 66, 69 and the registeringperforations in the tape 26 while others will be arrested and held bythe imperforate portions of the tape. One or all of the pins 66 whichcannot pass through the tape will be held stationary, resting on theimperforate portion of the tape surface when the frame 69 descends,which will result in the lever 66e attached to any such arrested pin.

being moved to the position shown in shaded lines in Fig. 5a, which willforce its lever 61 upwardly into engagement withthe bar 66 the latterbeing received by a recess 61a. This movement serves to force the arms1lb upwardly (Rig. 5a). thereby causing the bar 16 to be thrown to theright and over the locking recesses 66e on the levers 66c which areconnected 4to those pins 66 which lare in line with and have passed thruperforations in the tape, so thatv these latter pins become rigidlyconnected to the pin-box and move positively therewith during themovement of the latter toward the tape 26. This rigid connection is fora purpose to be presently described.

The pins 66 may be rendered ineffective to pass through perforations bygrasping. the end of lever 61 of the pin 66 it is desired to disable.rocking the lever to the right (Fig. 5a) until the lever can be pulledupwardly without moving the bar 69 and then allowing the recess 66 toengage the bar 66 to thereby hold the associated pin 66 in partlyelevated position. When the bar 69 is raised by the arresting of any pin66 due to engagement of the latter with an imperforate portion oi' thetape 26, the disabled pin will be raised still further by a movementupward relative to the frame 59 and cannot enter any hole which may bepresent in the tape. Even if no other pin 66 is stopped by the tape thepin which is latched up cannot move far enough to pass through a hole inthe tape.

The manner in which the pins 66 may be rendered ineffective is fullydescribed in Patent No. 1,476,161 cited hereinbefore.

The pin 66 which passes through a perforation in the column analyzedmoves a slight amount through the perforation then becomes locked by thetransverse latch bar 10 in the manner just described. Further downwardmovement of the analyzer causes the pin 66 to` strike a plate 1I carriedby arms 12 fixed to a cross shaft 16 thereby rocking the platedownwardly a slight amount. The shaft 16 is journaled in a frame 16which is fixed to the underside of plate 69 and also has bearingssupporting the shaft 66. An arm 16 @fixed to the shaft 13 extendsdownwardly and is adapted to push to the left (Fig. 1) a plunger 16mounted on a bracket 11 carried by the frame 14. The plunger 16communicates its leftward movement under the influence of plate 1I to ailexible wire 16 slidably mounted in a flexible tube leading to atripping plunger 19. The purpose of this construction is to control therelease of latches carried by a disk driven by the main shaft 60 in amanner now to be described.

Mounted loosely upon a fixed shaft parallel with the shaft 30 is a disk8i driven by a gear 62 which ymeshes with a smaller gear 83 fixed to themain shaft 36, the disk 8l and gear 62 being both fast to a bushingloosely mounted upon the shaft 86. The gear ratio between the gears 62,66 is such that the disk 8| turns one-third of 'a revolution with eachrevolution of shaft 36.

Pivotally mounted upon the disk 6I equal distances from each other andfrom the center of the shaft 60 are three latches 8l, 85 and 86 whichare alike in all respects. Each latch has a nose 61 and a lug 66 whichis offset from the rest of the latch, that is, the lugs 86 project tothe left (Fig. 1) and each normally lies just out of the path of theplunger 19. Each latch 84, 65, 66 has a hook 69 the rear side of whichnormally abuts against the rear side of a similar hook formed in each ofthree latches 9| pivotally mounted upon the disk 6I. A spring 92normally holds the latches of each pair shown in the position lultdescribed which is the condition of the latches Il anclv l and therelated latches Il. Eachlatchtl hasataillladaptedtocooperate with arelease cam Il fixed to the shaft Il. 'Ihe inward movement of each latchu, Il, Il under the influence of its spring l! is limited by a stop pinIl carried by the disk Il.

Blidably mounted on a bracket Il supported by the main frame is anarcuate plate l1 which liea in the plane of the noses l1 but isnormally` out of the path of movement of said noses when they occupytheir normal positions with the latches against the stops il as shown bythe condition of latches Il, The plate 91 is slidable in a directionaway from the center of shaft 80 and has a cam surface Il and a surfaceil concentric with the periphery of disk 8|. Cooperating with the plateIl is a bell crank l" one arm of which is normally urged in a clockwisedirection by means of a spring lili (Fig. 3) against a lug formed ln theedge of plate 91.y Plvoted to the other end of bell crank IIII is a linkIl! which extends upwardly and is pivoted to an arm I xed to a rockshaft I journaled in the tabulating machine frame and parallel with aline drawn through the tips of the zero stops I5 (Fig. 4). Fixed to theshaft I is a locking plate |05 which extends to the right (Fig. 3) andoverlies the left ends of the pivoted plates It. The plate Ill isprovided with a series of teeth or tongues I" which are bent downwardlyand lie between the left upper edges of plates i6 so that normally thesaid plates are locked with the zero stops II in the path of lugs I4thereby preventing tabulatlng and printing operations.

It will be seen, therefore, that the normal condition of the latches Il,l5, I6 and plates Il and Ill is such that an operation of the tabulatingmachine is prevented insofar as the tabulating and printing functionsare concerned so that the shaft Il will merely turn idly without effectother than to feed the record tape periodically.

'I'he analyzer 59 is spaced at a distance away from the pin box 2lequivalent to two record fields, that is to say, when the pin box 2l isreading the first record neld brought into operative relation thereto,the analyzer 59 will be reading one of the first ve columns of the thirdrecord field. This spacing is required owing to the necessity of usingany of the five columns operated upon by the analyzer 59 for printing anidentifying number on the work sheet in the tabulator and also to avoidcomplicating the construction of the pin box 2l and the mechanism'controlled thereby. The Purpose of the analyzer Il is to read theperforations in one of the first iive columns which are ordinarilydevoted to a group or class number in order to determine whether therecord analyzed is to be subsequently tabulated and printed or skippedentirely by the machine. The disk Il and the three latches Il, Il, Ilare provided to enable the analyzer to control the tabulating machine inthe manner desired notwithstanding the fact that the analyzer reads arecord field two cycles in advance of the tabulating cycle. In otherwords, three cycles are required to dispose of a given record fieldonecycle for analysis, an idle cycle, and a tabulating cycle.-`

'I'he operation of the various parts will now be described in detail. Itwill be assumed that a perforated record tape has been placed in themachine with the perforations in the first nve columns of the firstfield in register with the five rows of perforations in plates 38, I9,the hand wheel of the tablating machine having been previously turneduntil the teeth in gear 41 have just become disengaged from the teeth ingear the last named operation having been performed with the tabulatingmachine driving motor disconnected.

It will also be assumed that the perforations in `the first column onthe left in each record field are to be analysed to determine which ofsaid record fields are to be tabulated, and it will be understood thatrecord fields bearing a perforation in the "9" index point position ofthe rst column are to be tabulated. In order to render the analyzereffective only when the record field bears said perforation at "9", eachof the latch levers l1 except the extreme right hand latch lever (Fig.5) will be latched to the bail 0l in the manner described leaving onlythe said right hand pin il free to enter a perforation in the 9 indexpoint position.

As soon as the motor is started the eccentrics M will draw the frame 5|downwardly causing the right hand pin (Fig. 5) to enter the perforationat 9 if one happens to be present in the first column of the firstrecord field. Ihe pin It passing through said perforation will be lockedin the manner described just before the pin strikes the plate 1I so thatcontinued movement of said pin downwardly will effect positive rockingof shaft ltand arm 'il owing to the pin 6l pushing down on the plate 1|.As a result the arm 1l will push the plunger 1t to the left (Fig. l)thereby forcing the wire 'I8 through the flexible tube and effectingmovement of plunger 19 into the path of the offset lug 88 in the latchIl (Fig. 3). While the eccentrics are moving the half-revolutionnecessary to draw the frame il completely downward, the shaft lll willturn a half revolution and, since the ratio of gear Il to gear l2 is 1to 3, the disk 8| will move through one-sixthl of a revolution so thatby the time plunger Il has been forced completely into the path of lug83 on latches M, 35, or 86, the said lug will be immediately behind theplunger 19 or to the left of said plunger as viewed in Fig. 3. 'I'heframe 5I will now start to return to its normal position but will movevery slowly at first owing to the shape of the eccentrics 54 while thedisk Il will move at a uniform speed which will be greater than the rateof withdrawal of the plunger 19 so that the lug I8 will eventuallystrike said plunger with the result that the latch will be rockedclockwise (Fig. 3) until the hook 90 drops behind the hook B9 therebysecurely holding the latch 88 in its tripped position.

During the rst part of the revolution of shaft the pin box 2t will bemoved upwardly by the cams 29 but no eect will be produced upon thetabulating machine since no perforations will be present in the portionof the record strip between the pin box and the pins 20 and also becausethe plate |05 prevents the release of the actuators I2. Near the, end ofthe first revolution of shaft 30 or approximately the last one-sixth ofa revolution, the teeth in gear 41 engage the teeth in gear 48 and causethe record tape to be fed one record field tothe left (Fig. 1) therebybringing a new record field into position to be analyzed by the analyzerI! and moving the record field previously analyzed to a position beneaththe plates 40.

The same cycle of events will be gone through as before, the secondrecord field being read by the analyzer 59, and, if a perforation existsin the 9 position of the column analyzed in the second record neld, thenext latch M, It, or It passing aoeasso the plunger will be tripped asbefore. Near the end of the second cycle the tape 25 will be again fedforward thereby bringing the eld first analyzed into position totabulate the items recorded in said field while the second record fieldwill be moved into idle position between the plates 40. Meanwhile thelatch 84 first tripped will have moved approximately two-thirds of theentire circumference of disk 8| into position to bring the nose 81thereof into contact with the cam surface Il upon continued movement ofthe disk. The various parts will now occupy the positions shown in Fig.3 in which the latch 84 represents the latch first tripped owing to thepresence of the 9" perforation in the first field analyzed by analyzerIl; the latch 85 remaining untripped, it being assumed that the absenceof a 9 perforation in the second field prevented the tripping of saidlatch; while the latch 88 will be likewise untripped.

Further movement of the disk 8| will cause the nose 81 of the latch 84to strike the cam surface 88 llust before the pin box 28 starts to risefor the third cycle and consequently the arcuate plate 91 will be forcedoutwardly thereby rocking the bell crank |00 and causing the plate |05to rock upwardly so as to remove the teeth |06 from locking engagementwith the pivoted plates I6. When any of the pins 28 pass throughperforations in the first record field (now in tabulating position) thecorresponding pins I8, will be pushed up and the pivoted plate I8 commonto each row in which a pin I3 is raised will be rocked to the left (Fig.4) to disengage the zero stop |5 from the lug |4 In the actuator I2corresponding to the column in which the perforation appears. Theactuators will now be freed and will perform their usual functions sothatthe amounts corresponding to the various perforations in the firstrecord field will be tabulated.

Near the end of the third cycle the record tape will be again fedforward to bring the second record held into tabulating position andmove the fourth record field into position to be read by the analyzer59. Since the latch 85 was not tripped the plate |05 will not be rockedupwardly and the data in the second record field will not be tabulated.Likewise, the third record field will not be tabulated since the latch86 was not tripped. After the tripped latch 84 passes from contactwiththe arcuate plate 91 the tail 93 of the latch 0| will engage the cam 94and effect disengagement of the hook 90 from the hook 89 with the resultthat the spring 92 will pull the latch 84 back to normal positionagainst the stop pin 95.

It will be clear that the analyzer 59 determines whether or not aparticular record field is to be tabulated and if so, trips one of thelatches 84, 85, 80 in the manner described, the tripped latch not beingrendered effective to unlock the tabulating machine until the analyzer59 has read an intervening record field and is about to read a thirdrecord field.

So far the invention has been described in connection with a Powers typeof accounting mao chine, however, it may be desired to embody theinvention in a Hollerith type of tabulating machine as describedgenerally -in the Lake patents mentioned before herein. Figs. 6 to 9illustrate the invention as embodied in a Hollerith tabulating machineand will now be described in detail.

The Hollerith electric accounting and statistical machine analyzesrecords while they are in motion instead of while they are at rest asisthe case with the Powers tabulating machine, consequently the tape usedto control a Hollerith tabulating machine must be moving continuously.The tape must also be modified somewhat since the analyzing brushes ofthe tabulating mechanism all sweep simultaneously across the recordfield from the 9"'index point positions to the 12" index point positionsconsequently the record fields on the tape |01 must be arrangedside-by-side as in Fig.; instead of end-to-end as is the case in Fig.

The tape |01 is passed from a suitable supply roll, between feedingrollers |08 carried by shafts |09, between parallel guide plates ||0.over a metallic contact roll which is insulated from the framework,between parallel guide plates ||2, over a contactv bar I|3, and over afeed roller ||4 similar to the feed roller 4|, hereinbefore 'described,to a storage roll. Adjacent the feed roller ||4 the tape |01 is guidedby'means of a pair of plates ||5 similar to the plates 44. The roller I4is driven in the direction of the arrow (Fig. 6) by means of a shaft ||8carrying said roller and driven by the main shaft of the tabulatingmachine. The shaft I I8 is geared to make one revolution per tabulatingcycle.

Overlying the contact bar ||3 is a series of brushes ||1 underneathwhich passes the tape |01, there being a separate 'brush ||1 for eachcolumn in the record field. 'I'hese brushes are the usual Hollerithanalyzing brushes and are connected to the printing magnets and thecounter clutch magnets in exactly the same manner disclosed in the Lakepatents cited Vhereinbefore. Cooperating with the contact roll is asingle brush ||8 carried by a brush holder ||9 which is capable of beingset to read any desired column in the record fields. The brush holderand its manipulating mechanism may be of the form disclosed in PatentNo. 1,741,985, granted to E. A. Ford. The purpose of the brush ||8 is toread the perforations representing the class or group number anddetermine if the record field read is Vto be subsequently tabulated.

The shaft ||6 has fixed thereto a gear |20 meshing with a gear |2|loosely mounted upon a stub shaft |22. Fixed to the gear 2| is a disk|23 identical in all respects to the disk 8| and having three latches|24 similar to latches 84, 85, 86. Cooperating with the latches |24 isan arcuate plate |25 which is similar to the plate 91 and is arranged toclose a pair of contacts |26 whenever the plate is pushed outwardly by alatch |24 which may be tripped. A plunger |21 is arranged to be pushedinto the path of offset lugs |28 similar to tne lugs 88, a magnet |29being provided for this purpose. The magnet |29 is controlled by the b'ush through a circuit similar to the circuit disclosed in Patent No.1,741,985 cited hereinbefore. A release cam |30 is provided which isfixed to the shaft |22 and is similar in construction and purpose to thecam 94.

Mounted upon the shaft ||6 or on a shaft driven synchronously therewithis a commutator device |3| similar to the commutator device shown anddescribed in Patent No. 1,741,985 aforementioned. This commutator devicehas a common brush |32 (Fig. 8) connected to the left current supplywire |33 and a brush |34 which sweeps over the commutator bars |35. Thecommutator has a continuous contact ring |32a with which the bars |35may be made current conducting at will as explained in said Patent No.1,741,985 and upon which bears the common brush |32. Associated with thecommutator |8| is a second commutator having a segment |36 provided witha current connection to a continuous contact ring |32c with whichco-operates a brush |32b similar to brush |32 and connected to thelatter.

The brush ||3 is connected in series with the brush |33, a brush relay|33. and the magnet |23, to the right current supply wire |33. Whenrelay |33 is energized it closes contacts |334 and establishes asholdlngcircuit for itself and the magnet |29 through the brush |31 and segment|36 to the left current supply wire |33. In Fig. 8 the circuits for thetabuiating machine have been only partially indicated since they are nowwell known. It is sufficient to say that the brushes I1 correspond tothe usual lower brushes of the tabulating machine, the reference numeral|33 indicating the usual counter magnets. It will be understood that themagnets |33 form part of the usual Hollerith accumulating mechanism, oneform of which is described in detail in Patent No. 1,307,740 and, whenenergized by the differentially disposed perforations in the tape |31,control the accumulating mechanism in accordance with said perforations.The usual printing circuits are established by brushes ||1 throughprinter magnets |33a (Fig. 8). The printer magnets control the operationof type bars as in Patent No. 1,379,268. It will be observed that thecontacts |23 are in circuit with the common current connection to thecontact bar ||3 and are normally open so that under ordinarycircumstances the machine is prevented from tabulating and can onlytabulate when the contacts |23 are closed.

Referring to Fig. 6, the brushes ||1, ||3 are spaced apart a distanceequal to the length of tape covered by two record fields so that whenbrushes ||1 are resting upon, say the 9 indexpoint positions, of thenrst field of the tape, brush ||3 will be resting upon a 9 index-pointposition in a column of the third field. The effect is to sense theholes in the rst and third fields of any group of three together.

The operation of the mechanism Just described will now be describedbrieny.

It will be assumed that only record elds which have a perforation in the"3" index position are to be tabulated. In order to accomplish thisresult all of the commutator bars exceptthe "3 commutator bar will bemade non-conducts ing with respect to the continuous contact ring |32ain the manner described in Patent No. 1,741,985. Thus it will be clearthat no current can be established through the commutator |3| exceptwhen a perforation appears in the 3" index point position of the columndevoted to the class or group number,

The tape |31 will be inserted in the machine and adjusted preferably byalining a mark made in the tape with a similar mark made in the feedingroller H4, in order to insure that the prope time relationship willexist between the tape 31 and the brushes ||1. The tabulating machinewill be started in the usual manner by depressing the starting key whichwill cause the shaft ||3 to turn thereby feeding the tape i 31 in thedirection of the arrow, Fig. 6.

When the brush 3 encounters a perforation in the 3" index point positionof the column devoted to the group or class number, a current flow willbe established as follows: left current supply wire |33, common'brush|32, commutator bar |33 in the 3 position, brush |33, contact roll brush||3, brush relay |33, and magnet |23 to the right current supply wire-|33. Energization of the magnet |23 forces the plunger |21 into the pathof the offset lug |23 in one of the latches |24. Closure of contacts|33a by the relay |33 establishes a holding circuit for the magnet |23and the relay |33 through the brush |31, segment 33, continuous contactring |32a, common brush |32b to the left current supply wire |33.Through the remainder of the cycle devoted to the particular recordfield under consideration the magnet |23 will remain energized,consequently the disk |23 will carry the offset lug |23 of one of thelatches |23 past the plunger |21 and, as a consequence thereof, thelatch will be tripped in exactly the same manner as the latch 33 wastripped, as previously described. Nothing will happen for the time beingsince the tripped latch must move through approximately onethird of thecircumference of the disk |23 before its nose can strike the arcuateplate |23. At the end of the record cycle the segment 33 will breakcontact with thebrush |31 and the holding circuit through the magnet |23and relay |33 will be broken, consequently the plunger |21 will be drawnout of the path of the next latch.

The same cycle of events will be repeated for the second record ileldanalyzed by the brush ||3 and magnet |29 will be energized as before,provided, of course, there is present the perforation in the 3" indexpoint position. While the brush ||3 is reading`the perforations in thecolumn devoted to the group or class number in the second record field,the nrst record field will be moving toward the brushes ||1. About thetime the 9" index point'position of the ilrst record field read by thebrush I3 comes under the brushes I1 the tripped latch |23 will be inposition to engage the arcuate plate |25 so that slightly before thebrush |I1 actually reaches the "9" index point position of the rst fieldthe arcuate plate |23 will close the contacts |23 thereby connecting thecommon contact ||3 to the line through the usual relays and camcontacts. Thereafter the perforations in the first record field willbecome effective to control the tabulating machine in the usual fashionto accumulate the amounts on the record field and print them upon thework sheet.

-During the time the first record field is approaching'the brushes |1the second record neld will be passing the brush I3. If the secondrecord field contains a perforation in the 3 index l point position, asecond latch |23 will be tripped so that when the second record fieldarrives under the brushes ||1 the arcuate plate |23 will again be movedoutwardly to again close the contacts |23 so that the second recordliield will likewise be tabulated and printed. If no perforation waspresent in the second record field the latch |24 will not be trippedconsequently when the second record field arrives under the brushesA thecontacts 23 will not be closed and the second record field will not betabulated. It will thus be seen that there is a delay of approximatelyone full cycle before a record field containing a perforation in the 3index point position read by the brush ||3 becomes effective through thebrushes ||1 to control the operation of the tabulating machine. Y

The brushes ||1 and I3 are spaced apart a distance sufi'icient to causea delay of one tabulating cycle and are so spaced that the brushes willall read corresponding index point positions simultaneously. After thetripped latch 24 has passed from contact with the arcuate plate |25, therelease cam |33 will engage the tail of the holding latch and permit thesprings connecting the two 15 latches to restore them to their' normalpositions with the nose of the latch out of effective position. 1'

It is thought that the foregoing brief description taken in connectionwith the description of the mechanism illustrated in Figs. l to 5 willbe sufhcient to enable those skilled in the art to understand theconstruction and operation of the modification illustrated in Figs. 6 to9.

The present invention has been shown and described with reference to aspecific form of embodiment and applied to a particular type ofaccounting machine, however, it imngerstood that it is not limited tothe precise may be modied in details or applied to other types ofaccounting machines as well in order to suitably adapt it to the varyingconditions met in practice, all such modifications and adaptationsfalling within the scope of the following claims.

I claim:

1. Ina machine controlled by a record tape comprising spaced recordfields each containing item designations and item classificationdesignations, the combination of analyzing means for the itemdesignations in the record fields, a second analyzing means for theclassification designations adapted to senseY the classificationdesignations of each field a predetermined number of machine cyclesprior to analysis of the same record eld by the first analyzing means,means for feedingthe tape to both analyzing means. means for renderingsaid second named analyzing means effective to sense only predeterminedclassification designations, accumulating mechanism controlled by thefirst named analyzing means, a device for rendering the first namedanalyzing means ineffective to control said accumulating mechanism; arotary timing member rotated in synchronism with the feeding of thetape, said member having a plurality of elements, each settable tocontrol the operation of said device, said elements corresponding innumber to the number of machine cycles required for analysis of anygiven record field by both analyzing means; and means controlled by thesecond named analyzing means for setting one of said elements on theoccurrence of classification designations which the second namedanalyzing means is effective to sense.

2. In a machine controlled by a record tape comprising spaced recordfields each containing item designations and item classificationdesignations, the combination of analyzing means for the itemdesignations in the record fields, a second analyzing means positionedto sense the classification designations of each field a predeterminednumber of machine cycles prior to analysis of the item designations inthe record fields by the first analyzing means, means for feeding thetape to both analyzing means, a constantly rotating main shaft foroperating the tape feeding means, means for rendering the second namedanalyzing means effective to sense only predetermined classificationdesignations, accumulating mechanism connected to be controlled by thefirst named analyzing means, a device for rendering the first namedanalyzing means ineffective to control said accumulating mechanism; atiming member comprising a disc rotated'by said shaft in timed relationto the feeding of the tape, said disc having a plurality of settableelements spaced equal distances on the periphery of the disc foroperating said device, said elements corresponding in number to thenumber of machine cycles required for anallisis of any given recordfield by both analyzing means; and means controlled by the second namedanalyzing means for setting one of said elements on the occurrence ofclassification designations which the second named analyzing means iseffective to sense.

3. In a machine controlled by a record tape rcomprising spaced recordfields each containing item designations and item classificationdesignations, the combination of electrical analyzing brushes for theitem designations in the record iields, a second analyzing brush for theclassification designations positioned to sense the shownas'i'iti/"J/pciassiiication designations of each field a predeterm/inednumber of machine cycles prior to analysis of the item designations inthe record fields by the first analyzing brushes. means for feeding thetape past both analyzing brushes, a drive shaft for the tape feedingmeans, a selector device operated by said shaft and manually settable torender the second analyzing brush effective to respond to onlypredetermined classification designations,` accumulating mechanismincluding several accumulator control circuits connected to becontrolled by the first analyzing brushes, a circuit closer for saidcircuits; a timing member driven by said shaft and rotated insynchronism with the feeding of the tape, said timing member having aplurality of elements each settable to cause the operation of saidcircuit closer, said elements corresponding in number to the number ofmachine cycles required for analysis of any given record field by therespective analyzing brushes; and means controlled by the secondanalyzing brush for setting one of said elements on the occurrence of'classification designations which the second analyzing meansl iseffective to sense.

4. In a machine controlled by a perforated tape having item and itemclassification designations, separate means to sense the item andclassification designations, an accumulator having an ac,- cumulatorcircuit connected to the item sensing means for accumulating amountsunder control of an item designation, means for closing said circuit, arotary timing member having settable means for operating the circuitclosing means, a selector device settable to correspond withpredetermined classification designations, and means controlled by theclassification sensing means and the selector device for setting thesettable means in accordance with predetermined classificationdesignations.

5. In a machine controlled by a record strip having item designationsand item classification designations, separate means to sense the itemand classification designations, an accumulator, a series of accumulatormagnets, control circuits therefor, said circuits being connected to theitem sensing means whereby to control the accumulator magnets inaccordance with the item designations, a rotary timing member having aseries of settable elements, circuit control means in said circuitsactuated by said settable elements when set, a selector device connectedto the classification sensing means and settable to correspond withpredetermined classification designations, and means jointly controlledbythe classification sensing means and the selector device for settingthe settable means.

6. In a `machine controlled by a perforated record having itemdesignations and item classification designations, separate means tosense the item and classification.designations, an accumulator, meanscontrolled by the item sensing means to enter amounts in theaccumulator. a

rotary timing member having a series of settable control elementsmovable from an ineective to an eiiective position, accumulation controlmeans for rendering the entering means eiiective and inedective, saidsettable elements being movable past said accumulator control means whensaid member rotates and said elements when set to eiiective positionactuating the accumulator control means to eiiective position: means toset said elements to effective position as the timing member rotates,and a selector device connected to the classification sensing means andsettable to correspond with predetermined classification designationsfor causing the setting means to operate only when predeterminedclassincation designations are sensed.

7. In a machine controlled by a record tape comprising spaced recordelds each containing item designations and item classicationdesignations, the combination of electrical analyzing brushes for theitem designations in the record fields, a second analyzing brush for theclassincation designations positioned to sense the classincationdesignations ot each eld a predetermined number of machine cycles priorto analysis oi the same item designations in the record fields by thefirst named analyzing brushes, a selector circuit controlled by thesecond analyzer brush, means ior feeding the tape past the analyzingbrushes, a constantly rotating main shaft for operating the tape feedingmeans, a manually settable selector device for rendering the secondanalyzing brush effective to close the selector circuit only on theoccurrence oi predetermined classification designations, accumulatingmechanism having an accumulator control circuit connected to becontrolled by one ot the first named analyzing brushes, a circuit clodngdevice in the accumulator circuit: a timing member operated by saidshaft and comprising a disc rotated in synchronism with the feeding'o!the tape, said disc having a plurality oi' settable operating elementsspaced equal distances on the periphery of the disc for causing theoperation o! said circuit closing device, said elements corresponding innumber to the number of machine cycles required for analysis of anygiven record iield by both analyzing brushes; and means in the selectorcircuit and controlled by the second analyzing brush for setting one oisaid elements in a position to operate said circuit closing device toclose the accumulating control circuit when records bearing thepredetermined classincation designations are sensed by the iirst namedbrushes.

8. In a machine controlled by a record strip having both itemdesignations and item classiiication designations, means to feed saidstrip, means to sense the item designations, means to sense theclassiilcation designations in advance of the sensing of the itemdesignations by the item sensing means, accumulating mechanismcontrolled by the item sensing means, means to prevent accumulation oiitems by the accumulating mechanism, a movable member, means to movesaid member in step with the record strip, a plurality of elementsmounted on the movable member to travel therewith, said elements beingsettable to positions to subsequently disable the preventing means,means for setting the settable element when the classicationdesignations are sensed. and a selector'device presettable to correspondwith the predetermined designations, said selector device cooperatingwith the classiiication sensing means to cause the setting means to setthe settable element when the classiiicatlon designation sensing meanssenses the predetermined designations.

9. In a machine of the class described, means I to sense the itemdesignations, item recording mechanism controlled by the item sensingmeans, means to prevent recording of items by the recording mechanism, arecord strip having both item designations and item classiiicationdesignations, means to feed said strip, means positioned to sensethe'classiiication designations in advance of the sensing ot the itemdesignations by the item sensing means, a movable member, means to movesaid member in step with the record strip, elements mounted on themovable member to travel therewith, each oi said elements being settableto a position to subsequently disable the preventing means when the itemdesignations identii'ied by predetermined classification designationsare sensed by the item sensing means, means positioned to set one of thesettable elements when the classification designations are sensed, and aselector device presettable to correspond with the predetermineddesignations, said selector device being operative to cause the settingmeans to set the settable element when the classification designationsensing means senses the predetermined designations.

10. A record controlled machine `comprising means to 1feed a recordstrip having record iieids containing juxtaposed item and itemclassincation designations, spaced sensing means, one for sensing theitem designations and the other for sensing theclassiiicationdesignations,saidsensing means being spaced along therecord strip whereby the classiiication sensing means sensesclassicationdesignations before the itemsensingmeans senses thejuxtaposed item designations, mechanism controlled by the item sensingmeans, a device for rendering said mechanism operative or inoperativeunder control of the item sensing means, a rotary timing member havingseveral elements each settable to a position to actuate the said device,each of said elements corresponding to one of a connected series ofrecord iields, an element projectable into the path oi the settableelements to set same to eiiectlve position, means for driving the rotarymember whereby one oi said elements is brought to a position to be setby the projectable element for each record sensed bythe classificationsensing means, means controlled by the second analyzing device iorcausing the projection of the projectable element inw the path of thesettable elements preparatory to setting one of said elements, and apresettable selector device for rendering the olassliication sensingmeans eiiective to cause the operation of the means for causingprojection of the projectable element, said selector device being setitable to cause the projectable element to operate in response topredetermined classiilcation designations and to be inoperative torother classiiication designations.

LYNUS CLYDE REYNOLDS,

